How to replace content in file using command

Question

I need to replace the string into a file using PowerShell command.

Inside a file there are XML elements and I need to replace a particular element <version>1.0.0.0</version> with another string <version>3.0.0.0</version>.

For normal string I could write like below:

(Get-Content "D:\data.text").replace('1.0.0', '3.0.0') | Set-Content D:\data.text

How to do expression or pattern which could replace the content between <version></version> element.

EDIT:

Content of file is below:

<?xml version="1.0"?>
<package>
  <metadata>
    <id>C:\BuildAgent_SpiderWeb\work\52d106957b762949   \buildoutput\LatestPublished</id>
    <version>3.0.0</version>
    <authors>sonidha-a</authors>
  </metadata>
</package>

Need: To replace the content between ID element and Version element.

If this is XML I'd recommend using PowerShell's excellent XML editor: [xml]$data = Get-Content "D:\Data.Text"; $data.x.y.z.Version = "3.0.0.0" — Deadly-Bagel
– Deadly-Bagel, Commented Mar 3, 2016 at 9:10
If you'd rather use Replace please post a sample of your file including the version (so we can see if it's same line or if there are any surprises) — Deadly-Bagel
– Deadly-Bagel, Commented Mar 3, 2016 at 9:12
I have added details above. Please provide me getcontent command which could replace the content. — dsi
– dsi, Commented Mar 3, 2016 at 9:36

Ansgar Wiechers · Accepted Answer · 2016-03-03 09:45:49Z

3

Don't do string replacements on XML data. Ever. Rainbow unicorns will die if you do.

Instead, use PowerShell's XML parser, as @Deadly-Bagel already suggested:

[xml]$xml = Get-Content 'C:\path\to\your.xml'
$xml.package.metadata.version = '3.0.0.0'
$xml.Save('C:\path\to\output.xml')

answered Mar 3, 2016 at 9:45

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Ansgar Wiechers

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4 Comments

dsi Over a year ago

How to execute these separate multiple lines command into powerscript ? I am new bit.

Ansgar Wiechers Over a year ago

Copy/paste it into the PowerShell console or a PowerShell script.

dsi Over a year ago

also, I need to add <files> <file src="Published\**\**" target="content\" /> </files> content into just below the </metadata> end element. can you please tell me how to do that.

Ansgar Wiechers Over a year ago

Please do not move the target. If you have a new question: post a new question.

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